Top Ten DTrace (D) Scripts -- Prefetch Technologies
DTrace is a comprehensive and flexible dynamic tracing facility built into the Solaris, FreeBSD and OS X Operating System. DTrace allows dynamic instrumentation of a running system, which can assist with answering questions like “which process is chewing up CPU 38,” or “which user is causing the cross-call activity on CPU 6,” or “which setuid binaries are being executed?” DTrace uses a scripting l
tcpstat Home Page
Introduction tcpstat reports certain network interface statistics much like vmstat does for system statistics. tcpstat gets its information by either monitoring a specific interface, or by reading previously saved tcpdump data from a file. Some of the statistics tcpstat calculates: bandwidth number of packets packets per second average packet size standard deviation of packet size interface load m
Driftnet
[ Home page | Software ] Inspired by EtherPEG (though, not owning an Apple Macintosh, I've never actually seen it in operation), Driftnet is a program which listens to network traffic and picks out images from TCP streams it observes. Fun to run on a host which sees lots of web traffic. In an experimental enhancement, driftnet now picks out MPEG audio streams from network traffic and tries to play
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